Metal-planer.



H. BAERBALCK.

METAL PLANER.

APPLIUATION FILED MAY 4, 190e.

23 lf-g--i Wnesses, mm2 Bmwbmx. Dnvenhm 'UNITED sTATEs vPATENT OFFICE.

HANS BAERBALOK, OF HAMILTON, `OHIO, ASSIGNOR TO VTHE HAMILTON i MACHINE TOOL COMPANY, OF HAMILTON, OHIO, A CORPORATION OF OHIO. V

METAL-PLANER.

Specification of Letters Patent.

Patented June 8, 1909.

Application iled Hay 4, 1908. l Serial N0. 430,825.

To all 'whom it may concern.' Be it known that I, HANS BAERBALGK, a citizen of Germany, residing at Hamilton, Ohio, have vinvented a new and` useful Improvement in Metal-Planers, of which the foloWlng is a specification.

My inventlon relates to metal planers, and the objects of my improvement are 4to provide means for changing the speed of the table in one direction vonly while its speed in the opposite direction remains constant; to inclose the change gears within the planer bed to )rotect them from injury and for obviating t e usual vibration `of the parts; to provide shifting mechanism 011 the outside of the bed `for shifting the gears therein; to provide means for shifting the change gears separately to prevent them from conflicting; and to provide the mostdurable, simple and compact construction and assemblage of parts for obtaining the greatest facility of operation and efficiency ofaction. These objects are attained in the following described manner, as illustrated in the accompanyingr drawings, in Which:` f Figure 1 is a horizontal section of portions of a metal planer embodying my im rovements; Fig. 2, a side elevation and ligs. 3 and 4, details of the gear shifting mechanism. In the drawings, 1 represents the bed of a metal planer provided with shears 2, 3 a bulll gear for engaging with a rack for driving the table (not shown), 4 an intermediatesliaft provided with pinion 5 engaging gear 3 and with a gear 6 drivenv from pinion 7 011 the@- driving shaft 8, all being constructed and arranged in the ordinary manner.

The driving shaft 8 and a speed shaft 9 provided with gear 11 are journaled in thebed 40 by means of the usual sleeve bearings 12. A `loose sleeve 13 0n shaft 8 is provided with a ldriving pulley 14 and with a pinion 15 in engagement with gear 11 whereby shaft 9 may be driven at a redetermined speed from a belt (not shownon said pulley. A reversing pulley 16 secured on shaft 8 serves to drive said shaft at adiiferent predetermined speed and in the opposite direction from shaft 9 by means of a se arate belt (not shown). The` usual idle pu eys 17 and 18 for the belts are ilnounted on shaft 8 and sleeve 13 as shown in series' of different sized spur gears 21 are secured on shaft 8 Within the bed and a corresponding series of gears 22 secured together n 1n airs are splined on shaft 9, shifter rods 23 mined ositions of longitudinal adjustment With eit er ofthe gears 22 in or out of engagement with the corresponding gear 21.

A collar 27 provided with an eccentric pin 28 and with a hand lever 29 isswiveled in a bracket 31 which projects from the bed. A shaft 32 splined in said collar engages with the pin 28 and is thereby movable longitudinally in said collar. An arm 33 secured on shaft 32 is provided with an oppositely projecting stop 34 which is thereby movable into alternate engagement with notches 35 formed in the shifter rods. It is only possible to shift the stop 34 from one of said rods to the other when the rods are in the neutral position with the said notches in registration with each other and with all of the gears 22 disengaged from gears 21 as shown in Figs. 1 and 3. As said stop can only be engaged with one rod after its disengagement from the other, they can only be moved separately thereby that only one of the gears 22 can be engaged at the same vtime with the corresponding gear 21.

In operation, a predetermined and constant speed in one direction of the bull Wheel for the return movement ofthe table is v maintained when one belt is on the reversing pulley 16. When the belts' are shifted in the usual manner with the other belt on the driving pulley 14 the direction of shaft 8 and of the bull wheel is reversed for moving the table in a cutting direction and at different predetermined speeds according to the gear 22 which may )e engaged-with the corresponding 4gear 21. A quick return speed of thetable maybe thus secured and different cutting s eeds thereof in the opposite direction for ifferent duties may be obtained by shifting the gears 22 with the hand lever which is on the outside of the bed and conveniently accessible to the operator.

Having fully described my improvement, p

in independent means for driving said shafts i in the same direction and at constant speeds,

change speed gear connections between the portion of said shafts Within' the bed, and means actuated from the outside of the bed and arranged to shift said gears for driving the main shaft in the reverse drectionand atdiflerent predetermined speeds.

2. A metal planer comprisinga bed, a driving and a reversing shaft journaled there in, independent means for driving said shafts at respective constant speeds, change s eed reversing gears forthe main shaft sp ed on that portion of the reversing shaft within the bed and adapted 'to engage with correspending gears on the main shaft, and a s ifting rod extending through the wall of the bed. v

3. AA metal laner comprising a bed, a series of speed c anging gears therein, shifting rods therefor, a bracket bearing mounted' on the outside of the bed, a collar swiveled therein and ,provided with, a hand lever, a

shaft splined in the collar and provided with anarm, and an eccentric pin journaled in the collar for moving the shaft with the arm alternately into engagement with the rods.

HANS BAERBALCK.

Witnesses:

E. S. RICH, R. S. CARR. 

